I also had the EPC light come on the other day. When ì started the car, an error light came on in the centre of the screen saying 'error stop stařt'. It flashed off again but the epc light started on. Wasn't sure what to do but had an urgen medical appointment in half an hour. I decided to attempt to drive to my appointment 6 kms away. All OK getting there, and i rang the dealer to tell them the situation, and said i would bring the car in next day. When i started the car up to go home 5 hours later, the same error message came up with the EPC łight as well.
Before i had driven- 1 km, the EPC light went off and i haven't seen it since. I rang the dealer and told them i wouldn't be coming in as there wasnt a problem now. I figured that they can't find the problem if there is nothing showing on the dash. I have just put it down to a hiccup. So many electronics, but this is the age we live in.